[metrics-bugs] #23761 [Metrics/Website]: Add IPv6 relay graphs to metrics site

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#23761: Add IPv6 relay graphs to metrics site
----------------------------------+--------------------------------
 Reporter:  teor                  |          Owner:  metrics-team
     Type:  enhancement           |         Status:  needs_revision
 Priority:  Medium                |      Milestone:
Component:  Metrics/Website       |        Version:
 Severity:  Normal                |     Resolution:
 Keywords:  core-tor-wants, ipv6  |  Actual Points:  0.5
Parent ID:                        |         Points:  1
 Reviewer:                        |        Sponsor:
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Changes (by teor):

 * status:  needs_review => needs_revision


Comment:

 {{{
 +A relay can support IPv6 by announcing an IPv6 address and port for the
 OR protocol, which may then be confirmed as reachable by the <a
 href="glossary.html#directory-authority">directory authorities</a>, and by
 permitting exiting to IPv6 targets.
 }}}
 This sentence is hard to read, I suggest we split it into two sentences,
 one about ORPorts, and one about exiting.

 {{{
 +A bridge can support IPv6 by announcing an IPv6 address and port for the
 OR protocol.
 }}}
 This sentence could say that the bridge authority tests reachability, if
 #24264 gets fixed.


 {{{
 +<li><b>confirmed:</b> Whether the directory authorities have confirmed
 IPv6 OR
 +reachability by including an "a" line for a relay containing an IPv6
 address
 +(<b>"t"</b>) or not (<b>"f"</b>). If this column contains the empty
 string, all
 +running relays are included, regardless of whether their IPv6 address was
 found
 +reachable. Always the empty string for bridges.</li>
 }}}

 This paragraph is slightly inaccurate: authorities do reachability *and*
 consistency checks on the IPv6 address announced by the relay. There is no
 IPv6 "a" line in the consensus if there is a tied vote on the address.

 Also, maybe we should say "a" line in the consensus. I don't think we need
 to specify NS consensus, because it will be both consensuses when
 authorities upgrade to 0.3.3 (#23826).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/23761#comment:18>
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